US20160234963A1 - Enclosures and methods for removing hydrogen gas from enclosures - Google Patents
Enclosures and methods for removing hydrogen gas from enclosures Download PDFInfo
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- US20160234963A1 US20160234963A1 US15/015,900 US201615015900A US2016234963A1 US 20160234963 A1 US20160234963 A1 US 20160234963A1 US 201615015900 A US201615015900 A US 201615015900A US 2016234963 A1 US2016234963 A1 US 2016234963A1
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- Prior art keywords
- chamber
- enclosure
- ventilation
- battery
- hydrogen gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
-
- H01M2/1022—
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- H01M2/1264—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
- H05K7/186—Construction of rack or frame for supporting telecommunication equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present disclosure relates to enclosures and methods for removing hydrogen gas from enclosures.
- Enclosures may house components that release undesirable gases. For example, some batteries release hydrogen gas when recharging. This hydrogen gas may cause explosions when, for example, the concentration of hydrogen gas in the cabinet rises above about four percent.
- enclosures include one or more active systems (e.g., fans, etc.), perforations, etc. to exhaust the hydrogen gas.
- an electronic equipment enclosure includes a battery chamber, an equipment chamber positioned above the battery chamber, a ventilation chamber positioned between the battery chamber and the equipment chamber; and a wall extending between the battery chamber and the ventilation chamber.
- the battery chamber is configured to house one or more rechargeable batteries capable of releasing hydrogen gas over time.
- the battery chamber includes an inlet for allowing air to enter the battery chamber.
- the equipment chamber is configured to house at least one electrical component.
- the wall includes one or more perforations to allow hydrogen gas released by the one or more rechargeable batteries to pass from the battery chamber into the ventilation chamber.
- the ventilation chamber includes at least one side wall having one or more perforations to allow the hydrogen gas in the ventilation chamber to exit the enclosure.
- an enclosure includes a battery chamber, a ventilation chamber positioned above the battery chamber, and a wall extending between the battery chamber and the ventilation chamber.
- the battery chamber is configured to house one or more rechargeable batteries capable of releasing hydrogen gas over time.
- the battery chamber includes an inlet for allowing air to enter the battery chamber.
- the ventilation chamber includes at least one baffle to restrict water from entering the battery chamber.
- the wall includes one or more perforations to allow hydrogen gas released by the one or more rechargeable batteries to pass from the battery chamber into the ventilation chamber.
- the ventilation chamber includes at least one exterior wall having one or more perforations to allow the hydrogen gas in the ventilation chamber to exit the enclosure.
- FIG. 1 is a sectional view of an enclosure including a battery chamber, a ventilation chamber and a wall extending between the battery chamber and the ventilation chamber according to one example embodiment of the present disclosure.
- FIG. 2 is a sectional view of the enclosure of FIG. 1 with a heat management system adjacent a side wall of the battery chamber according to another example embodiment.
- FIG. 3 is a sectional view of an enclosure having a battery chamber, an equipment chamber, and a ventilation chamber positioned between the battery chamber and the equipment chamber according to yet another example embodiment.
- FIG. 4 is a sectional view of the enclosure of FIG. 3 with a heat management system according to another example embodiment.
- FIG. 5 is a sectional view of the enclosure of FIG. 3 with baffles in the ventilation chamber according to yet another example embodiment.
- FIG. 6 is a sectional view of a ventilation chamber employable in any of the enclosures of FIG. 1-5 according to another example embodiment.
- FIG. 7 is a perspective view of a ventilation chamber employable in any of the enclosures of FIG. 1-5 according to yet another example embodiment.
- FIG. 8 is a perspective view of a top wall for the ventilation chamber of FIG. 7 .
- FIG. 9 is a perspective view of a side joint structure of the ventilation chamber of FIG. 7 .
- Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
- first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- FIG. 1 An enclosure according to one example embodiment of the present disclosure is illustrated in FIG. 1 , and indicated generally by reference number 100 .
- the enclosure 100 includes a battery chamber 102 , a ventilation chamber 104 positioned above the battery chamber 102 , and a wall 106 extending between the battery chamber 102 and the ventilation chamber 104 .
- the battery chamber 102 is configured to house one or more rechargeable batteries 108 capable of releasing hydrogen gas over time.
- the battery chamber 102 includes an inlet 110 for allowing air to enter the battery chamber 102 .
- the ventilation chamber 104 includes at least one baffle 112 to restrict water from entering the battery chamber 102 .
- the wall 106 includes one or more perforations 114 to allow hydrogen gas released by the one or more rechargeable batteries 108 to pass from the battery chamber 102 into the ventilation chamber 104 .
- the ventilation chamber 104 includes at least one exterior wall 120 , 122 having one or more perforations 118 to allow the hydrogen gas in the ventilation chamber 104 to exit the enclosure 100 .
- hydrogen gas released from rechargeable batteries may be able to naturally exhaust from an enclosure.
- the enclosure may outgas hydrogen without one or more active cooling systems (e.g., fans, etc.) and/or some passive cooling systems (e.g., a large number of vents, etc.) which may cause turbulence, increased temperatures, increased contaminants (e.g., water, dust, insects, etc.) within the enclosure, etc.
- the enclosure may efficiently exhaust hydrogen gas to maintain a suitable concentration of hydrogen gas.
- the concentration of hydrogen gas may be maintained at (and in some cases below) about one percent.
- the perforations 114 , 118 may be positioned in the walls to allow the hydrogen gas to exhaust from the enclosure 100 naturally.
- the perforations 118 are positioned above the perforations 114 of the wall 106 extending between the chambers 102 , 104 .
- This configuration allows the hydrogen gas which is less dense and therefore lighter than the surrounding air in the enclosure 100 to rise towards the top portion of the ventilation chamber 104 passing through the lower positioned perforations 114 (relative to the perforations 118 ).
- the hydrogen gas continues to rise, it then can pass through the higher positioned perforations 118 (relative to the perforations 114 ) and exit the enclosure 100 .
- the ventilation chamber 104 may be defined by multiple external walls and one or more internal walls.
- the ventilation chamber 104 is defined at least by side external walls (of which walls 120 , 122 are shown), the wall 106 , and a top external wall 126 (e.g., a ceiling) opposing the wall 106 .
- each side wall 120 , 122 includes one perforation 118 to allow the hydrogen gas in the ventilation chamber 104 to exit the enclosure 100 as indicated by the arrows 127 of FIG. 1 .
- the battery chamber 102 may be defined by multiple external walls and one or more internal walls. As shown in the example of FIG. 1 , the battery chamber 102 is defined by a bottom external wall 128 (e.g., a floor, etc.), the wall 106 , and side external walls (of which walls 130 , 132 are shown) extending between the wall 106 and the bottom wall 128 . Thus, in the example of FIG. 1 , the battery chamber 102 and the ventilation chamber 104 share the wall 106 extending therebetween.
- a bottom external wall 128 e.g., a floor, etc.
- the wall 106 e.g., a floor, etc.
- side external walls of which walls 130 , 132 are shown
- the battery chamber 102 and the ventilation chamber 104 may include separate walls coupled together to form a wall extending between the battery chamber 102 and the ventilation chamber 104 .
- each separate wall may include aligned perforations to allow hydrogen gas released by the rechargeable batteries 108 to pass from the battery chamber 102 into the ventilation chamber 104 as explained above.
- the example ventilation chamber 104 of FIG. 1 includes two baffles 112 for restricting water from entering the battery chamber 102 .
- the baffles 112 each include a slanted portion extending from the top side of the shared wall 106 inside the ventilation chamber 104 .
- the baffles 112 may extend inwardly from the shared wall 106 at a defined angle (e.g., about 45 degrees as shown in FIG. 1 , about 60 degrees, about 90 degrees, etc.).
- each baffle 112 is adjacent an outermost perforation 114 of the shared wall 106 .
- the ventilation chamber 104 may include a drainage system to remove the water and/or other contaminants.
- the battery chamber 102 includes the inlet 110 for allowing air to enter the enclosure 100 .
- one of the side walls (e.g., the back side wall extending between the side walls 130 , 132 ) of the battery chamber 102 includes the inlet 110 adjacent the bottom wall 128 .
- the inlet 110 includes twelve perforations for allowing air (e.g., ambient air, etc.) to enter the enclosure 100 .
- FIG. 1 illustrates the back side wall as including the inlet 110 , it should be apparent to those skilled in the art that one or more other walls (e.g., the side walls 130 , 132 , the bottom wall 128 , etc.) of the battery chamber 102 may include one or more inlets in addition and/or alternative to the inlet 110 .
- the rechargeable batteries 108 of FIG. 1 are shown as battery stacks including multiple batteries.
- the enclosure 100 includes four rechargeable battery stacks each including multiple batteries.
- the rechargeable batteries 108 may be used to provide backup power to a load when a primary power source (e.g., rectifiers, etc.) is unable to provide adequate power.
- a primary power source e.g., rectifiers, etc.
- the enclosure 100 is shown to include four rechargeable battery stacks 108 , it should be apparent that more or less rechargeable batteries stacks may be employed without departing from the scope of the disclosure.
- FIG. 1 illustrates the shared wall 106 as including three perforations 114 and the walls 120 , 122 as including one perforation 118 , it should be apparent that each wall may include more or less perforations without departing from the scope of the disclosure.
- the wall 120 may include two perforations
- the wall 122 may include three perforations
- the shared wall 106 may include five perforations.
- the enclosure may include one or more thermal management systems.
- FIG. 2 illustrates another example enclosure 200 similar to the enclosure 100 of FIG. 1 .
- the enclosure 200 includes a battery chamber 202 and a ventilation chamber 204 substantially similar to the battery chamber 102 and the ventilation chamber 104 of FIG. 1 .
- the enclosure 200 of FIG. 2 includes a thermal management system 226 adjacent the side wall 132 of the battery chamber 202 .
- the thermal management system 226 may include, for example, a shroud, one or more heat generating components (e.g., heaters, etc.), one or more heat dissipating components (e.g., heat exchangers, thermoelectric (TEC) assemblies, fans, heat sinks, etc.), etc.
- the heat management system 226 may be a part of a door for the enclosure 200 .
- FIG. 2 illustrates the thermal management system 226 as being adjacent the side wall 132 , it should be apparent that a portion of or the entire thermal management system 226 may be adjacent another suitable wall and/or area of the enclosure 200 if desired.
- the enclosure 200 includes perforations on various walls.
- the wall 126 includes two perforations 220 and the walls 120 , 122 include one perforation 118 as explained above.
- the enclosure 200 includes at least one perforation 210 (e.g., sometimes referred to as an inlet) on the side wall 130 of the battery chamber 202 allowing air to enter the battery chamber 202 as explained above.
- the enclosure 200 includes a filter 224 adjacent each perforation 114 of the shared wall 106 extending between the chambers 102 , 104 .
- the filters 224 allow the hydrogen gas to pass and restrict water and/or other contaminants from entering the battery chamber 202 .
- the filters 224 may be any suitable filter. Additionally, although FIG. 2 illustrates a filter 224 adjacent each perforation 114 , it should be apparent one or more perforations 114 may not include a filter or the like if desired.
- filters may be positioned adjacent the perforations 118 and/or the perforations 220 to allow the hydrogen gas to pass and restrict water and/or other contaminants from entering the ventilation chamber 204 .
- the ventilation chamber and/or the battery chamber may include a solar shield adjacent to any one or more of its exterior walls.
- the ventilation chamber 204 includes a solar shield 234 adjacent the top exterior wall 126 and/or adjacent one or both of the side walls 120 , 122 .
- the solar shield 234 may be any suitable shield that reflects at least some solar energy while allowing the hydrogen gas to exit from the enclosure 200 .
- the solar shield 234 may be a component of one or more ventilation chamber walls.
- the ventilation chamber wall(s) may be formed of a particular material to reflect solar energy.
- the solar shield may include a material (e.g., a film, paint, etc.) coupled to the ventilation chamber wall(s).
- a material e.g., a film, paint, etc.
- the wall and/or the solar shield may be formed of aluminum (e.g., anodized aluminum, etc.), a fiberglass material, and/or another suitable material that has a desired reflection coefficient (e.g., a ratio of the radiation flux reflected by a surface to the incident radiation flux).
- the enclosures 100 , 200 include the rechargeable battery stacks 108 but no other electronic equipment.
- the enclosures 100 , 200 of FIGS. 1 and 2 may be considered a battery enclosure.
- the enclosure 100 may include one or more other components including, for example, control circuits, power components (e.g., rectifiers, converters, etc.), etc. In such examples, the enclosure may be considered an electronic equipment enclosure.
- FIG. 3 illustrates an electronic equipment enclosure 300 having a battery chamber 302 , an equipment chamber 336 positioned above the battery chamber 302 , and a ventilation chamber 304 positioned between the battery chamber 302 and the equipment chamber 336 .
- the battery chamber 302 is substantially similar to the battery chamber 102 of FIG. 1 and the ventilation chamber 304 is substantially similar to the ventilation chamber 104 of FIG. 1 but without the baffles 112 .
- the battery chamber 302 includes various walls (e.g., the wall 106 , etc.), houses two stacks of the rechargeable batteries 108 capable of releasing hydrogen gas over time, and an inlet 310 (e.g., similar to the inlet 210 of FIG. 2 ) for allowing air to enter the chamber 302 .
- the enclosure 300 of FIG. 3 includes the ventilation chamber 304 positioned above the battery chamber 302 and the wall 106 extending between the battery chamber 302 and the ventilation chamber 304 .
- the ventilation chamber 304 of FIG. 3 is defined by the side walls 120 , 122 , the wall 106 , and a top wall 326 .
- each side wall 120 , 122 includes two perforations 318 for allowing air, hydrogen gas, etc. to escape.
- the equipment chamber 336 has multiple walls for defining an interior for housing electrical component(s) 340 .
- the equipment chamber 336 includes a top wall 338 , the wall 326 , and side walls (e.g., walls 320 , 322 , etc.) extending between the walls 326 , 338 .
- the electrical component(s) 340 may include, for example, converters, rectifiers, control circuits, etc.
- the equipment chamber 336 and the ventilation chamber 304 share the wall 326
- the ventilation chamber 304 and the battery chamber 302 share the wall 106 (as explained above).
- one or more chambers may include separate walls coupled together to form a wall extending between the equipment chamber 336 and the ventilation chamber 304 and/or the battery chamber 302 and the ventilation chamber 304 as explained above.
- the hydrogen gas may flow into the ventilation chamber 304 via the perforations 114 as explained above. Additionally, negative pressure within the enclosure 300 may be created by allowing air (e.g., ambient air, etc.) to enter the battery chamber 302 via the inlet 310 (as explained above) and flow into the ventilation chamber 304 thereby generating an air flow path to assist in removing the hydrogen gas. After which, the gas and/or air may be exhausted from the enclosure 300 via the perforations 318 of the side walls 120 , 122 .
- air e.g., ambient air, etc.
- the equipment chamber 336 may be sealed to protect the electrical component(s) 340 from contaminants (e.g., the hydrogen gas released from the batteries 108 , water, etc.).
- the equipment chamber 336 may be considered a sealed equipment chamber (e.g., environmentally sealed, etc.).
- the chamber 336 may not include cutouts (or the like) that allow a free exchange of air including contaminants to enter.
- the wall 326 extending between the equipment chamber 336 and the ventilation chamber 304 does not include perforations or the like.
- the sealed enclosure may include gaskets, seals, potting, filters (as explained herein), etc. to protect the interior of the cabinet from contaminants (e.g., moisture, dirt, air, dust, etc.).
- FIG. 4 illustrates another example electronic equipment enclosure 400 substantially similar to the electronic equipment enclosure 300 of FIG. 3 .
- the electronic equipment enclosure 400 of FIG. 4 includes a thermal management system 424 adjacent one side (e.g., side walls) of the equipment chamber 336 , the ventilation chamber 304 , and the battery chamber 302 .
- the thermal management system 424 of FIG. 4 may be substantially similar to the thermal management system 226 of FIG. 2 .
- the thermal management system 424 of FIG. 4 may include perforations or the like to allow hydrogen gas to pass therethrough.
- the enclosure 400 of FIG. 4 may include one or more solar shields adjacent to any one or more of its exterior walls.
- the enclosure 400 includes a solar shield 434 adjacent the top exterior wall 338 and/or parts of all side walls (e.g., the side walls 320 , 322 ) of the equipment chamber 336 .
- the solar shield 334 of FIG. 4 may be substantially similar to the solar shield 234 of FIG. 2 .
- the enclosure may include one or more baffles and/or filters for restricting water from entering the battery chamber.
- FIG. 5 illustrates an electronic equipment enclosure 500 substantially similar to the enclosure 400 of FIG. 4 , but including two baffles 512 positioned in the ventilation chamber and filters 524 adjacent perforations of the shared wall extending between the battery chamber and the ventilation chamber.
- the baffles 512 and the filters 524 may be substantially similar to the baffles 112 of FIG. 1 and the filters 224 of FIG. 2 .
- the ventilation chambers disclosed herein may include a shared wall having one or more perforations.
- the ventilation chambers of FIGS. 1-5 include three perforations.
- the ventilation chambers may include more or less perforations if desired.
- FIG. 6 illustrates another ventilation chamber 604 including six perforations 614 , six filters 624 adjacent (e.g., covering, etc.) the perforations 614 , and two baffles 612 adjacent the outermost perforations 614 .
- the perforations 614 , the filters 624 , and the baffles 612 may be substantially similar to any one of the other perforations, the filters, and the baffles disclosed herein.
- the ventilation chamber 604 may be employed in any one of the enclosures of FIG. 1-5 .
- FIG. 7 illustrates another example ventilation chamber 704 including a top wall 706 , a bottom wall 708 opposing the top wall 706 , and four side walls 710 , 712 , 714 , 716 extending between the walls 706 , 708 .
- the top wall 706 is a solid plate.
- the ventilation chamber 704 may be employed in any one of the enclosures of FIG. 1-5 .
- the top wall 706 may be an external top wall of an enclosure if the enclosure does not include an equipment chamber above the ventilation chamber 704 .
- the top wall 706 may be a shared wall between the ventilation chamber 704 and the equipment chamber.
- the bottom wall 708 may be positioned between the ventilation chamber 704 and a battery chamber including rechargeable batteries as explained above. As such, the bottom wall 708 includes perforations 718 to allow hydrogen gas released by the rechargeable batteries to pass from the battery chamber into the ventilation chamber 704 as explained above. In the example of FIG. 7 , the bottom wall 708 includes nine perforations 718 . Alternatively, more or less perforations may be employed without departing from the scope of the disclosure.
- At least one of the side walls 710 , 712 , 714 , 716 and/or the top wall 706 may include one or more perforations to allow the hydrogen gas in the ventilation chamber 704 to exit an enclosure.
- FIG. 9 illustrates a bracket 900 including a top wall 904 , a bottom wall 906 , and a side wall 902 extending between the walls 904 , 906 .
- the bracket 900 may be used as a portion of any one of the ventilation chambers disclosed herein.
- the ventilation chamber 704 may include two brackets 900 extending along opposing sides of the ventilation chamber 704 .
- the side wall 902 of each bracket 900 may be part of, the entire portion of, etc. one of the side walls (e.g., walls 710 , 712 , 714 , 716 ) of the ventilation chamber 704 .
- each top wall 904 and bottom wall 906 of the bracket 900 may be coupled to the wall 706 and the wall 708 , respectively, of the ventilation chamber 704 via fasteners (e.g., screws, rivets, etc.), weld, etc.
- fasteners e.g., screws, rivets, etc.
- hydrogen gas released from rechargeable batteries in an enclosure may be exhausted by passing (e.g., venting, exhausting, etc.) hydrogen gas from a battery chamber of the enclosure to a ventilation chamber of the enclosure via perforations in a wall between the two chambers.
- the hydrogen gas may be exhausted from the enclosure by passing the hydrogen gas from the ventilation chamber via one or more additional perforations in one or more exterior walls of the ventilation chamber.
- the enclosures disclosed herein may provide low cost solutions for exhausting hydrogen outgassed from rechargeable batteries within the enclosures while complying with applicable standards (e.g., Telcordia requirements, etc.). Additionally, the enclosures may efficiently exhaust hydrogen gas without substantially impacting thermal performance of the enclosures.
- the enclosures may be deployed outdoors and/or indoors (provided appropriate external ventilation).
- the enclosures may be used as telecommunications enclosures, battery enclosures, power enclosures, etc.
- at least a portion of the enclosures may include environmentally sealed portions (as explained above) depending on the filters, gaskets, seals, potting, etc.
- the enclosures and/or chambers disclosed herein may be any suitable material, size, shape, etc.
- the ventilation chambers may have a height of about 1.5 inches.
- the ventilation chambers may have a height of more or less than about 1.5 inches if desired.
- the walls of the chambers may be formed of one continuous piece of material or formed of multiple pieces of material.
- the walls may be formed of sheet metal, the walls (including portions of) may be defined by equipment housed in the chamber, etc.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
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Abstract
Description
- This application claims the benefit and priority of Indian Patent Application No. 433/MUM/2015 filed Feb. 10, 2015. The entire disclosure of the above application is incorporated herein by reference.
- The present disclosure relates to enclosures and methods for removing hydrogen gas from enclosures.
- This section provides background information related to the present disclosure which is not necessarily prior art.
- Enclosures may house components that release undesirable gases. For example, some batteries release hydrogen gas when recharging. This hydrogen gas may cause explosions when, for example, the concentration of hydrogen gas in the cabinet rises above about four percent. Typically, enclosures include one or more active systems (e.g., fans, etc.), perforations, etc. to exhaust the hydrogen gas.
- This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
- According to one aspect of the present disclosure, an electronic equipment enclosure includes a battery chamber, an equipment chamber positioned above the battery chamber, a ventilation chamber positioned between the battery chamber and the equipment chamber; and a wall extending between the battery chamber and the ventilation chamber. The battery chamber is configured to house one or more rechargeable batteries capable of releasing hydrogen gas over time. The battery chamber includes an inlet for allowing air to enter the battery chamber. The equipment chamber is configured to house at least one electrical component. The wall includes one or more perforations to allow hydrogen gas released by the one or more rechargeable batteries to pass from the battery chamber into the ventilation chamber. The ventilation chamber includes at least one side wall having one or more perforations to allow the hydrogen gas in the ventilation chamber to exit the enclosure.
- According to another aspect of the present disclosure, an enclosure includes a battery chamber, a ventilation chamber positioned above the battery chamber, and a wall extending between the battery chamber and the ventilation chamber. The battery chamber is configured to house one or more rechargeable batteries capable of releasing hydrogen gas over time. The battery chamber includes an inlet for allowing air to enter the battery chamber. The ventilation chamber includes at least one baffle to restrict water from entering the battery chamber. The wall includes one or more perforations to allow hydrogen gas released by the one or more rechargeable batteries to pass from the battery chamber into the ventilation chamber. The ventilation chamber includes at least one exterior wall having one or more perforations to allow the hydrogen gas in the ventilation chamber to exit the enclosure.
- Further aspects and areas of applicability will become apparent from the description provided herein. It should be understood that various aspects of this disclosure may be implemented individually or in combination with one or more other aspects. It should also be understood that the description and specific examples herein are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
-
FIG. 1 is a sectional view of an enclosure including a battery chamber, a ventilation chamber and a wall extending between the battery chamber and the ventilation chamber according to one example embodiment of the present disclosure. -
FIG. 2 is a sectional view of the enclosure ofFIG. 1 with a heat management system adjacent a side wall of the battery chamber according to another example embodiment. -
FIG. 3 is a sectional view of an enclosure having a battery chamber, an equipment chamber, and a ventilation chamber positioned between the battery chamber and the equipment chamber according to yet another example embodiment. -
FIG. 4 is a sectional view of the enclosure ofFIG. 3 with a heat management system according to another example embodiment. -
FIG. 5 is a sectional view of the enclosure ofFIG. 3 with baffles in the ventilation chamber according to yet another example embodiment. -
FIG. 6 is a sectional view of a ventilation chamber employable in any of the enclosures ofFIG. 1-5 according to another example embodiment. -
FIG. 7 is a perspective view of a ventilation chamber employable in any of the enclosures ofFIG. 1-5 according to yet another example embodiment. -
FIG. 8 is a perspective view of a top wall for the ventilation chamber ofFIG. 7 . -
FIG. 9 is a perspective view of a side joint structure of the ventilation chamber ofFIG. 7 . - Corresponding reference numerals indicate corresponding parts or features throughout the several views of the drawings.
- Example embodiments will now be described more fully with reference to the accompanying drawings.
- Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
- The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.
- Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- Spatially relative terms, such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- An enclosure according to one example embodiment of the present disclosure is illustrated in
FIG. 1 , and indicated generally byreference number 100. As shown inFIG. 1 , theenclosure 100 includes abattery chamber 102, aventilation chamber 104 positioned above thebattery chamber 102, and awall 106 extending between thebattery chamber 102 and theventilation chamber 104. Thebattery chamber 102 is configured to house one or morerechargeable batteries 108 capable of releasing hydrogen gas over time. Thebattery chamber 102 includes aninlet 110 for allowing air to enter thebattery chamber 102. Theventilation chamber 104 includes at least onebaffle 112 to restrict water from entering thebattery chamber 102. Thewall 106 includes one ormore perforations 114 to allow hydrogen gas released by the one or morerechargeable batteries 108 to pass from thebattery chamber 102 into theventilation chamber 104. Theventilation chamber 104 includes at least oneexterior wall more perforations 118 to allow the hydrogen gas in theventilation chamber 104 to exit theenclosure 100. - By employing a ventilation chamber above a battery chamber and perforations in walls between the ventilation chamber and battery chamber, hydrogen gas released from rechargeable batteries may be able to naturally exhaust from an enclosure. For example, the enclosure may outgas hydrogen without one or more active cooling systems (e.g., fans, etc.) and/or some passive cooling systems (e.g., a large number of vents, etc.) which may cause turbulence, increased temperatures, increased contaminants (e.g., water, dust, insects, etc.) within the enclosure, etc. As such, the enclosure may efficiently exhaust hydrogen gas to maintain a suitable concentration of hydrogen gas. In some embodiments, the concentration of hydrogen gas may be maintained at (and in some cases below) about one percent.
- The
perforations enclosure 100 naturally. For example, and as shown inFIG. 1 , theperforations 118 are positioned above theperforations 114 of thewall 106 extending between thechambers enclosure 100 to rise towards the top portion of theventilation chamber 104 passing through the lower positioned perforations 114 (relative to the perforations 118). As the hydrogen gas continues to rise, it then can pass through the higher positioned perforations 118 (relative to the perforations 114) and exit theenclosure 100. - As shown in
FIG. 1 , theventilation chamber 104 may be defined by multiple external walls and one or more internal walls. For example, theventilation chamber 104 is defined at least by side external walls (of whichwalls wall 106, and a top external wall 126 (e.g., a ceiling) opposing thewall 106. In the example embodiment ofFIG. 1 , eachside wall perforation 118 to allow the hydrogen gas in theventilation chamber 104 to exit theenclosure 100 as indicated by thearrows 127 ofFIG. 1 . - Similarly, the
battery chamber 102 may be defined by multiple external walls and one or more internal walls. As shown in the example ofFIG. 1 , thebattery chamber 102 is defined by a bottom external wall 128 (e.g., a floor, etc.), thewall 106, and side external walls (of whichwalls wall 106 and thebottom wall 128. Thus, in the example ofFIG. 1 , thebattery chamber 102 and theventilation chamber 104 share thewall 106 extending therebetween. - Alternatively, the
battery chamber 102 and theventilation chamber 104 may include separate walls coupled together to form a wall extending between thebattery chamber 102 and theventilation chamber 104. In such examples, each separate wall may include aligned perforations to allow hydrogen gas released by therechargeable batteries 108 to pass from thebattery chamber 102 into theventilation chamber 104 as explained above. - Furthermore, the
example ventilation chamber 104 ofFIG. 1 includes twobaffles 112 for restricting water from entering thebattery chamber 102. In particular, thebaffles 112 each include a slanted portion extending from the top side of the sharedwall 106 inside theventilation chamber 104. For example, thebaffles 112 may extend inwardly from the sharedwall 106 at a defined angle (e.g., about 45 degrees as shown inFIG. 1 , about 60 degrees, about 90 degrees, etc.). Additionally, and as shown inFIG. 1 , eachbaffle 112 is adjacent anoutermost perforation 114 of the sharedwall 106. As such, water and/or other contaminants that may enter theventilation chamber 104 via theperforations 118 may be trapped between thebaffles 112, thewall 106, and thewalls battery chamber 102 through theperforations 114. In such cases, theventilation chamber 104 may include a drainage system to remove the water and/or other contaminants. - As explained above, the
battery chamber 102 includes theinlet 110 for allowing air to enter theenclosure 100. For example, and as shown inFIG. 1 , one of the side walls (e.g., the back side wall extending between theside walls 130, 132) of thebattery chamber 102 includes theinlet 110 adjacent thebottom wall 128. In the particular example ofFIG. 1 , theinlet 110 includes twelve perforations for allowing air (e.g., ambient air, etc.) to enter theenclosure 100. - Although the
inlet 110 ofFIG. 1 includes twelve perforations, it should be apparent that more or less perforations and/or another suitable inlet may be employed to allow a sufficient amount of air to enter thebattery chamber 102 to assist in exhausting the hydrogen gas from the enclosure as explained above. Additionally, althoughFIG. 1 illustrates the back side wall as including theinlet 110, it should be apparent to those skilled in the art that one or more other walls (e.g., theside walls bottom wall 128, etc.) of thebattery chamber 102 may include one or more inlets in addition and/or alternative to theinlet 110. - The
rechargeable batteries 108 ofFIG. 1 are shown as battery stacks including multiple batteries. For example, and as shown inFIG. 1 , theenclosure 100 includes four rechargeable battery stacks each including multiple batteries. Therechargeable batteries 108 may be used to provide backup power to a load when a primary power source (e.g., rectifiers, etc.) is unable to provide adequate power. Although theenclosure 100 is shown to include four rechargeable battery stacks 108, it should be apparent that more or less rechargeable batteries stacks may be employed without departing from the scope of the disclosure. - Additionally, although
FIG. 1 illustrates the sharedwall 106 as including threeperforations 114 and thewalls perforation 118, it should be apparent that each wall may include more or less perforations without departing from the scope of the disclosure. For example, thewall 120 may include two perforations, thewall 122 may include three perforations, and the sharedwall 106 may include five perforations. - In some embodiments, the enclosure may include one or more thermal management systems. For example,
FIG. 2 illustrates anotherexample enclosure 200 similar to theenclosure 100 ofFIG. 1 . For example, theenclosure 200 includes abattery chamber 202 and aventilation chamber 204 substantially similar to thebattery chamber 102 and theventilation chamber 104 ofFIG. 1 . Theenclosure 200 ofFIG. 2 , however, includes athermal management system 226 adjacent theside wall 132 of thebattery chamber 202. Thethermal management system 226 may include, for example, a shroud, one or more heat generating components (e.g., heaters, etc.), one or more heat dissipating components (e.g., heat exchangers, thermoelectric (TEC) assemblies, fans, heat sinks, etc.), etc. In some embodiments, theheat management system 226 may be a part of a door for theenclosure 200. - Although
FIG. 2 illustrates thethermal management system 226 as being adjacent theside wall 132, it should be apparent that a portion of or the entirethermal management system 226 may be adjacent another suitable wall and/or area of theenclosure 200 if desired. - As shown in
FIG. 2 , theenclosure 200 includes perforations on various walls. For example, thewall 126 includes twoperforations 220 and thewalls perforation 118 as explained above. Additionally, and as shown inFIG. 2 , theenclosure 200 includes at least one perforation 210 (e.g., sometimes referred to as an inlet) on theside wall 130 of thebattery chamber 202 allowing air to enter thebattery chamber 202 as explained above. - In the example of
FIG. 2 , theenclosure 200 includes afilter 224 adjacent eachperforation 114 of the sharedwall 106 extending between thechambers filters 224 allow the hydrogen gas to pass and restrict water and/or other contaminants from entering thebattery chamber 202. Thefilters 224 may be any suitable filter. Additionally, althoughFIG. 2 illustrates afilter 224 adjacent eachperforation 114, it should be apparent one ormore perforations 114 may not include a filter or the like if desired. Further, in some embodiments, filters (e.g., similar to thefilters 224, etc.) may be positioned adjacent theperforations 118 and/or theperforations 220 to allow the hydrogen gas to pass and restrict water and/or other contaminants from entering theventilation chamber 204. - In some embodiments, the ventilation chamber and/or the battery chamber may include a solar shield adjacent to any one or more of its exterior walls. For example, and as shown in
FIG. 2 , theventilation chamber 204 includes asolar shield 234 adjacent the topexterior wall 126 and/or adjacent one or both of theside walls solar shield 234 may be any suitable shield that reflects at least some solar energy while allowing the hydrogen gas to exit from theenclosure 200. For example, thesolar shield 234 may be a component of one or more ventilation chamber walls. In such cases, the ventilation chamber wall(s) may be formed of a particular material to reflect solar energy. In other examples, the solar shield may include a material (e.g., a film, paint, etc.) coupled to the ventilation chamber wall(s). For example, the wall and/or the solar shield may be formed of aluminum (e.g., anodized aluminum, etc.), a fiberglass material, and/or another suitable material that has a desired reflection coefficient (e.g., a ratio of the radiation flux reflected by a surface to the incident radiation flux). - Further, and as shown in
FIGS. 1 and 2 , theenclosures enclosures FIGS. 1 and 2 may be considered a battery enclosure. Additionally and/or alternatively, theenclosure 100 may include one or more other components including, for example, control circuits, power components (e.g., rectifiers, converters, etc.), etc. In such examples, the enclosure may be considered an electronic equipment enclosure. - For example,
FIG. 3 illustrates anelectronic equipment enclosure 300 having abattery chamber 302, anequipment chamber 336 positioned above thebattery chamber 302, and aventilation chamber 304 positioned between thebattery chamber 302 and theequipment chamber 336. Thebattery chamber 302 is substantially similar to thebattery chamber 102 ofFIG. 1 and theventilation chamber 304 is substantially similar to theventilation chamber 104 ofFIG. 1 but without thebaffles 112. For example, thebattery chamber 302 includes various walls (e.g., thewall 106, etc.), houses two stacks of therechargeable batteries 108 capable of releasing hydrogen gas over time, and an inlet 310 (e.g., similar to theinlet 210 ofFIG. 2 ) for allowing air to enter thechamber 302. - Similar to the
enclosure 100 ofFIG. 1 , theenclosure 300 ofFIG. 3 includes theventilation chamber 304 positioned above thebattery chamber 302 and thewall 106 extending between thebattery chamber 302 and theventilation chamber 304. Theventilation chamber 304 ofFIG. 3 is defined by theside walls wall 106, and atop wall 326. As shown inFIG. 3 , eachside wall perforations 318 for allowing air, hydrogen gas, etc. to escape. - As shown in
FIG. 3 , theequipment chamber 336 has multiple walls for defining an interior for housing electrical component(s) 340. For example, theequipment chamber 336 includes atop wall 338, thewall 326, and side walls (e.g.,walls walls - In the example of
FIG. 3 , theequipment chamber 336 and theventilation chamber 304 share thewall 326, and theventilation chamber 304 and thebattery chamber 302 share the wall 106 (as explained above). Alternatively, one or more chambers may include separate walls coupled together to form a wall extending between theequipment chamber 336 and theventilation chamber 304 and/or thebattery chamber 302 and theventilation chamber 304 as explained above. - If hydrogen gas is released from the batteries 108 (e.g., outgassed, etc.), the hydrogen gas may flow into the
ventilation chamber 304 via theperforations 114 as explained above. Additionally, negative pressure within theenclosure 300 may be created by allowing air (e.g., ambient air, etc.) to enter thebattery chamber 302 via the inlet 310 (as explained above) and flow into theventilation chamber 304 thereby generating an air flow path to assist in removing the hydrogen gas. After which, the gas and/or air may be exhausted from theenclosure 300 via theperforations 318 of theside walls - In some example embodiments, the
equipment chamber 336 may be sealed to protect the electrical component(s) 340 from contaminants (e.g., the hydrogen gas released from thebatteries 108, water, etc.). As such, theequipment chamber 336 may be considered a sealed equipment chamber (e.g., environmentally sealed, etc.). In such examples, thechamber 336 may not include cutouts (or the like) that allow a free exchange of air including contaminants to enter. Thus, and as shown inFIG. 3 , thewall 326 extending between theequipment chamber 336 and theventilation chamber 304 does not include perforations or the like. If appropriate, the sealed enclosure may include gaskets, seals, potting, filters (as explained herein), etc. to protect the interior of the cabinet from contaminants (e.g., moisture, dirt, air, dust, etc.). -
FIG. 4 illustrates another exampleelectronic equipment enclosure 400 substantially similar to theelectronic equipment enclosure 300 ofFIG. 3 . Theelectronic equipment enclosure 400 ofFIG. 4 , however, includes athermal management system 424 adjacent one side (e.g., side walls) of theequipment chamber 336, theventilation chamber 304, and thebattery chamber 302. Thethermal management system 424 ofFIG. 4 may be substantially similar to thethermal management system 226 ofFIG. 2 . Thethermal management system 424 ofFIG. 4 , however, may include perforations or the like to allow hydrogen gas to pass therethrough. - Additionally, the
enclosure 400 ofFIG. 4 may include one or more solar shields adjacent to any one or more of its exterior walls. For example, theenclosure 400 includes asolar shield 434 adjacent the topexterior wall 338 and/or parts of all side walls (e.g., theside walls 320, 322) of theequipment chamber 336. The solar shield 334 ofFIG. 4 may be substantially similar to thesolar shield 234 ofFIG. 2 . - In some embodiments, the enclosure may include one or more baffles and/or filters for restricting water from entering the battery chamber. For example,
FIG. 5 illustrates anelectronic equipment enclosure 500 substantially similar to theenclosure 400 ofFIG. 4 , but including twobaffles 512 positioned in the ventilation chamber and filters 524 adjacent perforations of the shared wall extending between the battery chamber and the ventilation chamber. Thebaffles 512 and thefilters 524 may be substantially similar to thebaffles 112 ofFIG. 1 and thefilters 224 ofFIG. 2 . - As explained above, the ventilation chambers disclosed herein may include a shared wall having one or more perforations. For example, the ventilation chambers of
FIGS. 1-5 include three perforations. Alternatively, the ventilation chambers may include more or less perforations if desired. For example,FIG. 6 illustrates anotherventilation chamber 604 including sixperforations 614, sixfilters 624 adjacent (e.g., covering, etc.) theperforations 614, and twobaffles 612 adjacent theoutermost perforations 614. Theperforations 614, thefilters 624, and thebaffles 612 may be substantially similar to any one of the other perforations, the filters, and the baffles disclosed herein. Theventilation chamber 604 may be employed in any one of the enclosures ofFIG. 1-5 . -
FIG. 7 illustrates anotherexample ventilation chamber 704 including atop wall 706, abottom wall 708 opposing thetop wall 706, and fourside walls walls FIGS. 7 and 8 , thetop wall 706 is a solid plate. - The
ventilation chamber 704 may be employed in any one of the enclosures ofFIG. 1-5 . As such, thetop wall 706 may be an external top wall of an enclosure if the enclosure does not include an equipment chamber above theventilation chamber 704. Alternatively, if an enclosure includes an equipment chamber above theventilation chamber 704, thetop wall 706 may be a shared wall between theventilation chamber 704 and the equipment chamber. - The
bottom wall 708 may be positioned between theventilation chamber 704 and a battery chamber including rechargeable batteries as explained above. As such, thebottom wall 708 includesperforations 718 to allow hydrogen gas released by the rechargeable batteries to pass from the battery chamber into theventilation chamber 704 as explained above. In the example ofFIG. 7 , thebottom wall 708 includes nineperforations 718. Alternatively, more or less perforations may be employed without departing from the scope of the disclosure. - Additionally, although not shown, at least one of the
side walls top wall 706 may include one or more perforations to allow the hydrogen gas in theventilation chamber 704 to exit an enclosure. -
FIG. 9 illustrates abracket 900 including atop wall 904, abottom wall 906, and aside wall 902 extending between thewalls bracket 900 may be used as a portion of any one of the ventilation chambers disclosed herein. For example, theventilation chamber 704 may include twobrackets 900 extending along opposing sides of theventilation chamber 704. In such cases, theside wall 902 of eachbracket 900 may be part of, the entire portion of, etc. one of the side walls (e.g.,walls ventilation chamber 704. Additionally, eachtop wall 904 andbottom wall 906 of thebracket 900 may be coupled to thewall 706 and thewall 708, respectively, of theventilation chamber 704 via fasteners (e.g., screws, rivets, etc.), weld, etc. - As explained above, hydrogen gas released from rechargeable batteries in an enclosure may be exhausted by passing (e.g., venting, exhausting, etc.) hydrogen gas from a battery chamber of the enclosure to a ventilation chamber of the enclosure via perforations in a wall between the two chambers. The hydrogen gas may be exhausted from the enclosure by passing the hydrogen gas from the ventilation chamber via one or more additional perforations in one or more exterior walls of the ventilation chamber.
- As such, the enclosures disclosed herein may provide low cost solutions for exhausting hydrogen outgassed from rechargeable batteries within the enclosures while complying with applicable standards (e.g., Telcordia requirements, etc.). Additionally, the enclosures may efficiently exhaust hydrogen gas without substantially impacting thermal performance of the enclosures.
- The enclosures may be deployed outdoors and/or indoors (provided appropriate external ventilation). The enclosures may be used as telecommunications enclosures, battery enclosures, power enclosures, etc. In some embodiments, at least a portion of the enclosures may include environmentally sealed portions (as explained above) depending on the filters, gaskets, seals, potting, etc.
- The enclosures and/or chambers disclosed herein may be any suitable material, size, shape, etc. For example, the ventilation chambers may have a height of about 1.5 inches. Alternatively, the ventilation chambers may have a height of more or less than about 1.5 inches if desired. The walls of the chambers may be formed of one continuous piece of material or formed of multiple pieces of material. For example, the walls may be formed of sheet metal, the walls (including portions of) may be defined by equipment housed in the chamber, etc.
- The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Claims (20)
Applications Claiming Priority (2)
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IN433MU2015 | 2015-02-10 | ||
IN433/MUM/2015 | 2015-02-10 |
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US20160234963A1 true US20160234963A1 (en) | 2016-08-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/015,900 Abandoned US20160234963A1 (en) | 2015-02-10 | 2016-02-04 | Enclosures and methods for removing hydrogen gas from enclosures |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112291894A (en) * | 2020-10-15 | 2021-01-29 | 新黎明科技股份有限公司 | Cavity-in-cavity structure hydrogen-discharging type emergency lighting control system |
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